Cervical Dystonia Study: Prospective, double-blind, placebo-controlled, randomized, multi-center trial with a double-blind parallel-group extension period to investigate the efficacy and safety of different doses of NT 201 in the treatment of cervical dystonia

Creatine and Parkinson's Study: Creatine and Parkinson's Study

Deep Brain Stimulation Study: A new system for deep brain stimulation and Parkinson's disease

Dimebon in Subjects with Huntington's Disease: Dimebon in subjects with Huntington's disease

Early Parkinsons Study (PramiBID): A randomized, double-blind, active (pramipexole 0.5 mg tid) and placebo controlled, efficacy study of pramipexole given 0.5mg and 0.75mg bid over a 12-week treatment phase in early Parkinson's disease patients (PramiBID)

Early vs. Delayed Treatment of Parkinson's Disease: A randomized, double blind, placebo-controlled, parallel-group clinical trial to examine the efficacy and safety of early pramipexole treatment versus delayed pramipexole treatment in patients with new onset Parkinson's disease

Epilepsy Device Trial: A Study Evaluating the Safety and Efficacy of an Investigational Device Used to Stimulate the Anterior Nucleus of the Thalamus as Adjunctive Therapy in Adults Diagnosed With Epilepsy Characterized by Partial-onset Seizures, With or Without Secondary Generalization

Epilepsy and Depression (Interictal Dysphoric Disorder): Study to evaluate the safety and efficacy of medication in the treatment of a form of depression in epilepsy known as interictal dysphoric disorder with or without postictal depressive symptoms.

Epilepsy and Mood: The purpose of this research study is to determine if a particular antiepileptic medication may have these same positive results as some of the other antiepileptic drugs have produced on mood.

Fragile X Outcome Measures: Development of outcome measures for future clinical trials in Fragile x syndrome

Fragile X Study: Premutation Carriers: Neurological phenotype in FMR1 premutation carriers

Investigational Device for Removing Blood Clots from the Brain: Study of an investigational device system for removing blood clots from the brains of subjects with blockage of blood flow to one of the arteries in the brain

Parkinson's Disease Eye Safety Study: A two-year, open label, randomized, parallel group, blinded assessment ophthalmologic safety study of pramipexole ir versus ropinirole in early Parkinson's disease patients

Parkinson's Disease Genetics Study: Genetic epidemiology of Parkinson's disease (Consortium on Risk for Early-onset PD: CORE-PD)

Parkinson's Disease and Erectile Dysfunction: A randomized, double-blind, placebo-controlled study of sildenafil (Viagra) in Parkinson's disease men with erectile dysfunction

Parkinson's Disease and Sleep Disturbance Study: A study of the treatment of hallucinations and sleep disturbances in Parkinson's disease

Stroke Study: CLOSURE 1 Trial: A study to evaluate an investigational septal closure system in patients with a stroke and/or transient ischemic attack

Tourette Syndrome Study: Safety and effectiveness study of a new medication for children with Tourette syndrome

Treatment of Blepharospasm: Treatment of blepharospasm